A Multi-Domain Feature Fusion Framework for Generalizable Deepfake Detection Across Different Generators

• URL: http://arxiv.org/abs/2606.14230v1
• Date: Fri, 12 Jun 2026 08:12:03 GMT
• Title: A Multi-Domain Feature Fusion Framework for Generalizable Deepfake Detection Across Different Generators
• Abstract summary: We propose a multi-domain deepfake detection framework called SGFF-Net.<n>It integrates spatial, gradient, and DWT-based frequency representations within a dual residual learning architecture.<n>It achieves 98.95% accuracy in intra-dataset evaluation and improves performance in both cross-model and cross-paradigm settings.
• Score: 1.8499314936771558
• License: http://creativecommons.org/licenses/by-nc-sa/4.0/
• Abstract: Deepfakes are artificially generated images, audio, or videos that threaten privacy, security, and information integrity. Detecting such content is crucial for countering disinformation, as the latest models generate highly realistic content. While spatial- or frequency-based approaches achieve good detection rates on Generative Adversarial Networks (GANs)-based generated deepfakes, they often struggle with recent diffusion model-generated images. In particular, existing approaches rarely exploit complementary multi-domain representations or systematically evaluate cross-generator robustness. To address these challenges, we propose a multi-domain deepfake detection framework called SGFF-Net (Spatial-Gradient-Frequency Fusion Network) that integrates spatial, gradient, and DWT (Discrete Wavelet Transform)-based frequency representations within a dual residual learning architecture. Experimental results show that the SGFF-Net achieves 98.95\% accuracy in intra-dataset evaluation and improves performance in both cross-model (70.46\%) and cross-paradigm (69.94\%) settings. Incorporating multi-source training and data augmentation further enhances robustness, increasing accuracy from 70.46\% to 79.80\% in cross-model evaluation, from 69\% to 78\% in cross-paradigm evaluation, and from 61.50\% to 75.80\% on real-world data. Unlike single-domain detectors, the SGFF-Net learns complementary forensic cues across spatial, gradient, and wavelet-frequency domains, resulting in greater robustness under cross-generator and cross-paradigm evaluation. The results further show that combining multi-domain representations with data diversity and augmentation substantially improves generalization, providing practical insights for developing more reliable deepfake detection systems.

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